Gas-engine



5 Sheets-Sheet 1 (No Model.)

P.-MUNZINGEP..

GAS ENGINE.

Patented Oct. 24

e nu

lhuenio r11 N. persas. Phuwumognpn". wmanmn, uc.'-

(No Model.) 6 Sheets-Sheet 2 P. MUNZ-INGEB.. v.

GAS ENGINE.'

Patented Oct. 24,

lllIi-IHIUG (No Model.) PI MUNZINGBR. 5 Sheets-Sheet; 3.

GAS ENGINE.

Patented Oct. 24, 1,882.

` aan' N. PETERS. Pholn-Lilhagnpher. Walhingmn: DA C.

Sheets-Sheet 4.

(No Model.)

` P. MUNZINGBR.

' GAS- ENGINE.

N. PETERS. Phaxa-Lhhagmpmr, wnhingwn. D. C4

5 sheets-sheet 5.

(No Model.)

P. MUNZINGER.

GAS ENGINE.

lajnted Oct. 24

N. PETERS, PhclovLilhugrlphvr, Walhnginn, D4 C.

UNTTieio STATES 'PATENT @einen PETER MUNZINGER, OF PHILADELPHIA, PENNSYLVANIA.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 266,304, dated October 24., 18E 2.

Application filed March 2, 18S-2.

Io all whom it may concern Be itknown that I, Pn'rna .N'IUNZINc-ER, of the city and county of Philadelphia, in the State of Pennsylvania, have invented an Lnprovemeiit in Gas-Engines, ot' which the following is a specification.

The object of' my invention is to produce a gas-engine which shall be simple and durable in its construction, and which shall ett'ect the most economical results byinsuring the maximum amount of power from the expenditure ot' a given quantity ot' gas.

The invention relates to an engine-in which the force developed b v the ignition ot' explosive gaseous mixtures is employed as the motive power. Those compounds which result from the mixture ot' gases obtained from light hydrocarburets with atmospheric air are those best employed. 1t has for a long time been known that such compounds were capable ot' developing upon ignition an immense degree ot' force, and various attempts have been made to employ them as motive agents for working machinery. My engine is provided with a free piston working in an open-ended cylinder, the said piston being connected to the crank through the intervention of a suitable crosshead and connecting-rod. The engine is singleacting, and the impetus ot` the ijy-wheel is de signed to return the piston, after the explosion ofthe charge, inposition to receive the impulse of the next explosion. rl"he valve-niotion employed places the space on one sideof the piston only alternately in connection with the feed and with the exhaust. The gaseous mixture is tirst introduced into the cylinder, then suddenlyignited by means provided for that purpose,and.becoming thus suddenlyand greatly expanded, forces the piston to the end of its stroke, the return of the piston expelling the products of combustion from the cylinder.`

The invention consists in certain novel constructions or arrangements of various parts of the engine, whereby numerous specific advantages are obtained and an engine combining increased durability with et'iiciency is produced.

In the accompanying drawings, Figure 1 represents in vertical front sectional elevation an engine conveniently embodying my improvements, the section being supposed in a vertical (No model.)

plane projected at right angles to the plane of the sectional view of Fig. 2, and on the line t a, thereof', looking from the right-hand side ofsaid Fig'. 2. Fig. 2 is a vertical side sectional elevation taken on planes projected at right angles to the sectional plane of Fig. 1, and on the lines l) b ot' said Fig. 1, viewed from the left-hand side ot' said Fig. 1. Fig.3 isaside sectional elevational view ot' the combustion-chamber and contrivancestor regulating the supply ot' burning-gas and controlling its introduction into the combustion-chamber t'or the purpose of producing an explosion therein. The view is taken on a sectional plane projected on the line c o of Fig. 1, and at right angles to the plane ot' section ot' said ligure. rl`he parts are represented in the positions which they respectively occupy before the ignition ot' the explosive mixture. Fig. 4t is a view in all respects similar to Fig. 3, with the exception that the parts are represented in the position which they occupy at 'the moment when the iiame or igniting medium has been forced into thecombustion-chamber for the'purpose of producing the explosion. In other words, the partsY are in positions opposite to those which they occupy in said Fig. 3. Fig. 5 is a vertical front sectional elevation oi' the combustion-chamber, induction and eduction valves, and neighboring parts in the opposite positions to those which the saine parts occupy in Fig. 1. Fig. 6 is a side sectional elevation, taken on the line d d ot- Fig. l in a plane at right angles to the plane ot' section ot' said Fig. 1, representing the position ofthe eduction-valve when open and viewed from the iight hand of said Fig. 1; Fig. 7 is a top sectional plan view taken ona horizontal plane projected on the line c e of Fig. or on the line ffot' Fig. 1, and at right angles to the plane of section ,of both the above iigures. Fig. 8 is atop plan view of the upper portion ot my apparatus. Figs. 9 and 10 are respectively front sectional elevational detailsa taken on planes corresponding to the plane ot' section of Fig. l, and designed to represent the governor and its connected Vappliances and the injector supplemental feed-valve in opposite positions. Fig. 1l is an end elevational view ot' the upper portion ot' the apparatus, looking from the right-hand side ot' Fig. 1 or from behind Fig. 2.

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Similar letters of reference indicate corre sponding parts.

The followingis a description ot'an apparatus conveniently embodying my invention.

The apparatus consists primarily ot' a fram ework, titly composed otl suitable standards erected from and upon a hollow base and carrying across their upper extremities a headplate and head frame-work, in which the combustion-chamber and the various valves and valve-movements are assembled. Inthe'l'ramcwork are also placed the cylinder, piston, and gas-feeding and motion-transinitting devices, all as hereinafter set t'orth.

In the drawings, A A represent two main standards ot' any pre'leri ed shape, but suitably ot' that shown in the drawings. They are erected upon a hollow base, and support near their upper extremities a vertical cylinder, (l, within which plays the piston D.

E is the main shaft. suitably journaled horizontally in the frame-work, preferably above the base. Thisshat't carriesthebalance-wheel F,driving1nilley G, crank-wheel H, and a beveled spur-wheel, I. The piston-rod J, which is connected with the piston, is also connected with a reciprocating cross-head, K, to which is also connected the pitmau L, which drives thecrank-wheel. Thereciproeatingcross-head plays in guideways M, depending' from the cylinder and suitably stayed by webs N, brackets, or supports from the main stt'tndards.

O is a water-jacket, surrounding the cylinder, subserving the usual purpose.

l) is a pump-plunger, the upper extremity ot' which is connected with the reciprocatingr cross-head K, and the lower extremity ol" which plays within a pump, Q., erected within the base ot' the frame-work.

1t is a dit't'erential force-pump ot' a construc- /tion invented by ine,`applicatiou for patent for which was tiled in the United States Patent Ottico January 23, 1882. This pump is einployed to supply, in suitable proportions, a combustible mixture ot' gas and air, forcing the saine under pressure through the force-pump inlet-pipe S into a reeeiving-chamber, T, in the base ot' the trame-work, and represented in Fig. 2. The accumulation of the explosive mixture in this chamber occasions the elevation of a pump-supply valve, U, and the escape and introduction ot' the explosive mixture into a pump-vestibule, V, from out of which the mixture ilows through the port 7 into the pump Q. The explosive mixture being supplied to the pump as above stated, in the action of the engine the descent of the pump-plunger P will occasion the expulsion ot' the mixture from out the pump, um the pump exit-port X, into a second vestibule, Y, provided with apump exit-valve, Z, which islit'ted by the pressure ot' the explosive mixture inthe second vestibule so as to permit the escape of the said mixture into a conduit, ct, leading out from the base ot' the engine and thence upwardly into the injector-casing b, so as to provide a means of passage for the explosive mixture to the injector. The pumps supply and exit valves U and Z are of any such usual construction as adapts them to permitot' the passage of the gaseous mixture in one direction only and to prevent the retlux or movement in the opposite direction. lt will be understood that the gaseous mixture or explosive medium employed is thus introduced to the engine under the pressure, first, ot' my rotary ditt'eren'tial forcing-pump, and, second, ot' the pump which is driven hy the piston ot' the en` gine.

c e are supplemental standards, erected at right angles to the main standards upon either side ot' a head-plate, d, set or rested upon said limiti standards in a plane horizontal thereto. llorizontally between the upper extreinites ot' these supplemental standards is journaled a cam-shaft, c, upon the right-hand extremity ot' which is keyed a second bevel spur-whcehj", corresponding in dimensions and pitch ot' thread to the bevel spur-wheel I upon the main shaft.

g is a pinion-shaft, vertically erected and `journaled between two brackets, It t', laterally projected from the main standards. On each end of this sha't are pinionsjj, respectively meshing with the beveled spur-wheels l and j. This pinion-shaft and pinion and spur-wheel connection is simply a convenient means ot transmitting motion from the main shat't to the cam-shaft, and any other suitable dcvire may be substituted lhcrelor.

7; is a governor-shaft,alsojournaled between the brackets 7i i, and taking its motion ot' rotation by means of a toothed wheel, t, keyed thereon and meshing with a toothed pinion, m, on the pinion-shaft. The relative proportions ot` the toothed wheel and pinion are such as to impart a predetermined revolution of the goveruor-shat't.

fn are the balls of' the governor, the arms o ot' which are pivotcd to the governor-shaft. and engage above their pivots, in the usual manner, with pins 12, connected to and projecting` laterally from a stem, q, through vertical slots in the governor-shaft, which is made hollow to receive said stem. The stem projects from the upper end ot the governor-shalt, and is connected with the bell-crank lever r, pivotcd upon the upper l'aee ot' the bracket lf, and with the throttle-lever 8,11`igs. S and 1l, which connects by means ot' a link, t, with the throttlevalve u, applied in the cond uita, through which the gaseous mixture is supplied to the injector, as hereinbct'ore stated. It will now be understood that upon the rapidity ot' revolution and consequent spread ot' the balls ot' the governor will depend the movement ot the governorstem, while upon the movement ot' the stem will depend the throw ot' the throttle-lever and the consequent movement ot' the throttle, and also the deilectiou ot' the bell-crank lever, i'or a purpose hereinafter set forth.

bis, as stated, the injector-casing which ineases the injector, and communicates at its receiving end with theconduita, through which TOO IOS

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the explosive gaseous mixture is supplied from the pump, and at its discharging end communicates, iirst, with a chamber, c, which I term the injector-discharge chamber,77 into which the injector opens, and which leads to the induction-valve; and, second, with another chamber, w, which I term the injector supplemental supply-chamber,77 all as shown iu Figs. 1, 2, and 7.

.r x is an injector inclosed within the injector-casing referred toand preferably formed ot' such character asis shown in the drawingsthat is to say, as a tube, x, and nozzle a" opening thereinto. The conduit a discharges into this nozzle. Reference to the drawings will show that the injector-tube is concentric with the injector-casing, so that an annular gallery, l1, is formed between them. rlhis gallery communicates with the injector supplemental supply-chamber w, while the injector-tube communicates with the discharge-chamber r. The only communication between the chambers w and lz: is through the gallery and tube at the point ot'introduction ofthe injector-nozzle into the tube. Upon the supply ot' the gaseous mixture through the conduit past the throttle it tinds its passage through the injector into the injector-discharge chamber e.

Between the supplemental standards upon the head-plate are cast, formed, or otherwise erected the combustion-chamber and certain valve-chambers, passage-ways, and structures, which are hereinafter described. First among these is the combustion-chamber y, which is well shown in Figs.1,3, 4,aud 5. vItis a chamber otI proper interior configuration, formed in a casting ot' I.suitable strength and adapted to receive and contain at the moment of explosion the charge ot' explosive gaseous mixture. Itis, moreover, preferably vertically disposedthat is to say, its greatest dimension is from top to bottom-and atits lower portion it expands and communicates with the upper portion ofthe cylinder', which, as stated, is set in the trame-work below it. At its upper portion the eoinbustion-chamber is 'formed into a tubular journal box or sleeve, e, Figs. 1, 3, 4, and 5, which is designed to contain, free for revolution, a tubular induction-valve, 1, through ports in which the gaseous explosive mixture is introduced into the combustion-chamber.

The ind action-valve is formed in three parts, the first a hollow cylinder, to which the numeral l has been applied, and which is made hollow', so as to surround the cam-shaft and leave an annular interspace, 2, between the exterior ot' the shaft and the interior of the cylinder. The ends of this cylinder No. l are reamed out in conical form, so as to tit them to receive two cones, 3, which arc keyed gas-tight upon the cam-shaft by means ot' a feather or spline or kindred contrivance, which enables them to move endwise upon said shaft, while insuring their revolution with it. These cones J are provided with adj Listing-screws 4, by which they can be tightened up into the cylinder l, so as to take up any wear otA the parts. rllhe cylinder revolves with the cones. Said cylinder is provided with two ports, 5 and 6, respectively registering in line in their revolution with an opening, 45, into the combustion-chamber, and with the passage-way 7, which leads down to the injector-discharge chamber n. Upon the revolution of the cylinder and cones, together forming the tubular imluction-valve, with the shaft, it. will be readily understood the ports 5 and 6 come simultaneously as to each other, but intermittently` in point of time, into line with the opening into thc combustion-chamber and with the passage-way 7, and at the moment when they register in line, as in Fig. 1, they afford means ot' escape for the explosive gaseous mixture which has been forced through the injector, 'um the injector-discharge chamber and passage-way T, into the interspace within the tubular valve, and thence into the conduistiou-chamber. Thus it is seen that this induction-valve not only enables the introduction at predetermined intervals ot' a sufficient quantity of explosive mixture into the combustionchamber, but also shuts oft the supply, yas in Fig. 5, after the requisite amount has been fed into said combustion-chainber. Under favorable conditions it is to be supposed that theexplosive mixture ot'gas and air supplied through the force-pump is ot' the identical composition requisite to insure the desired explosive standard. Under certain well known conditions, however, it becomes desirable to enrich the mixture forced through the conduit by the addition of richer and unmixed gas before the mixture reaches the combastion-chamber, and this I accomplish bythe following contrivance.:l

8, Fig. 2, is an inlet t'or rieh gas, which opens into a tight comlnirtment, t), formed in the head casting ot' the engine. partment communicates through a valve-port closed by means of a puppet-valve, l0, called hereinafter the injector supplemental supplyvalve,77 with a supplemental supply-chamber, te, with which in turn the gallery -11 in the injector-casing b communicates. Through the instrumentality ot' this cont'rivance rich gas can be introduced upon the opening of the valve 10, cia the gallery, to the injector at its nozzle, so as to be sucked in to mingle with the gaseous mixture which is supplied through the injector from the conduit a. rlhe valve referred to as No. 10, or the injector supplemental supply-valve, is operated to open and to permit ot' this introduction of rich gas, whenever the movement ot' the engine is so slow that the balls ofthe governor close in upon the governor-shaft, in the following manner: When the balls` close in their' arms raise the governorstem, so that the bell-crank lever is tilted and its vertical arm thrown from the left to the right, or from the position which it is represented as occupying in Fig. 9 to that which it is represented as occupying in Figs. l and l0.

Connected with the u pper end of this bell-crank lever is a rod, 13, which passes into the end ot' the camshaft, which is made hollow to receive it, and within said shaft is connected with a This tight com- IIO piu,14,which is secured to a movable cam, 15, surroundingI and free to move endwise upon the cam-shaft, and which pin passes through longitudinal slots 16 in cam-shatt. From this construction it will be at once seen that the tilting ot' the bell-crank lever causes the movement ofthe slidingcam endwise upon the shaft, so as to bringl the cam out of line with the upwardly-projecting valve-stein 17 of the valve 1U, or elseI throw it in line with said stem, so as to cause it to act upon the latter, and upon its every revolution, so long as it remains in alignmentwith the stem, cause its depression and the consequent opening ofthe valve and introduction ot' rich gas into the injector. 12 is a spring tor returning the valve-stein 17.

1t will be apparent that the supplemental supply-valve is only opened when the engine is ruiming at the slowest speed and when it is desired to accelerate the speed and to such end to supply rich unmixed gas to the explosive mixture.

Reterring now to Figs. 1, (i, and 7,1e` represents the eduction-tiiort, which communicates through the passage-way lf) with the combustion-chamber and upper extremity ot' the cylinder. Through this port escape the smoke and other products otn the combustion. The portis controlled bythe eduction-valve 20, being a l'ml'ipet-valve, the stem of which passes through a chamber in which is incased a spi-V ral, 2l,which acts in the usual manner to keep the valve seated in its seat.

22 is a fixed cam upon the cam-shaft, which is so set that upon every revolution ofthe cam-shaft it encounters the stem ot" the eduction-valve, and opens the latter to give the lead to the exhaust and permit of the escape ot'theI products ot' combustion. This cam is so timed with respect to the revolution ot' the tubular imluction-valve thatit causes the opening ot the eduetion-valve at the moment when the piston is at the bottom ot' its stroke and causes its closing at the moment when the piston has reached the top ot' its stroke, acting oppositely to the induction.

Suitablyjournaled in thehead of thet'ramework, preferably between the supplemental standards, is a rock-shalt, 23, which is provided with a rock-shaft arm, 24, Fig. S, which bears against the tixed cam 22 on the camshalt, and is caused thereby to rock the rockshat't with a predetermined oscillation dependent upon the pitch ot' the cam.

lransversely set through the combustionchainber, and in tixed relation thereto, so as to open as to its interior therein, is a-'cylindric77 cariier-chaniber, 25, as I term it, which projects transversely as to the head ot' the engine on either side from out the casting torming the combustion-chamber. Throughoutthis cylinder runs ay carrier-stem, 2(5,which projects beyond both extremities ot' the chamber, and to the rear ot'the head ot' the machine is connected with a rocker, 27, on the rock-shaft. By this contrivance, upon the oscillationof the rock-shaft through its arm, the rocker is caused to intermittently reciprocate the carrier-stem 26 lengthwise ot' its chamber.

W'ithin that portion ofthe cylindric carrierchamber which lies within the combustionchamber is fitted, free to slide on the carrierstem, an ignition-valve, 28, which closes what I term theignitionport77 29, whichlatteris a double-faced throat, formed transversely within the cylindric chan'iber, and to which said ignition-valveis fitted. Uien this ignition-valve is closed upon theignition-portthecombustionchamber is tight against the outer air, while the explosion which takes place within it tends Ito tighten thevaive in its seat, an action which a spiral spring, 30, coiled about the carrierstem 26and battingagainsttheignition-valve, supplements.

Exterior to the casting which forms the combustion-chamber the transverse cylindric carrier-chamber 25 is provided with tlameports 31, in line below which opens the burner 32, t'rom which emanates the tlame which is designed to produce the ignition ofthe gases.

Located, when at rest, to the iront ot' the {lame-ports 3l is a iiame carrier, 33, which isa cup titted within the exterior or front portion ot' the cylindric carrier-chalnber and adapted to be reciprocated therein by means ot the valve-stem 26, to which it also is connected.

Now assume the parts to bein thepositions which they are represented as occupying in Fig. 3, upon the throw ot the rocker the carrier-stein is drawn back, and with it the tlamecarrier is moved until its open face registers against the outer face ot' the ignition-port in the position shown in Fig. 4, whereby the thune-ports are closed by the carrier. 1n this throw of the carrier-stem the stop 3-1 upon it encounters and unseats the ignition-valve 2S slightly in advance ofthe time when the tiamecarrier is closed against the ignition-port, so that by this contrivance there is provided a means not only for opening the ignition-port, but also for carrying the flame bodily thereinto, so as to bring it into contact with the explosive gaseous mixture already in the combustion-chamber t'or the purpose ot' occasioning the explosion ot' such mixture, The timing ot' the throw of the flame-carrier as respects the niovement ofthe valve ot' the ignition-port is such as to enable the closing ot' the ilameports subsequent to the opening ot' said ignition-valve. The stroke ot' thc stop 3i against the ignition-valve is such as to overcome the spiral 30 (whereof hereinafter) and cause the movement ot' said valve notwithstanding it. Upon the release ofthe rock-shaft arm t'rom its cam the rocker is of course free to be returned, and the timing ot' the fixed cam that moves the arm referred to is such as to permit ot' the counter movement of the carrier-stein and the consequent closing ot the ignition-valve prior to the time ot` the explosion. This return is etfected through thel instrumentality of a powerful recoil-spring, 55, coiled about the carrier- IOS IIO

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stem to thet'ront of the cylindric carrier-chamber, and abutting between the front ot' said chamber and a depending yoke, 36, aided by the expansion ot the spiral 30 of the ignitionvalve and the force of the explosion. In the return ofthe flame-carrier an air-cushion is formed between the front ofthe cylindrie carrier-chamber and the head of the flame-carrier.

37 is what I term a burning-gi s valvechamber,77 it being a eylindrie chamber formed upon thcliead-plate of the engine, preferably in line beneath the carrier-chamber. Midway below this chamber a burning-gas-inlet pipe, 38, opens, while its upper outlet at the burner 32 is in line below the tlame-ports ot' the eylyndric chamber. Irrespective of other devices, burning-gas admitted through the pipe 3S can he lighted at the burner 32 and kept constantly burning, in which condition, when the carrier is retracted, as in Fig. 3, the ame' will pass completely through the name-ports in the carrierchamher and be visible above the upper port.

39 is the llame-valve, beinga cylindric stoppei` playing eiidwise within the burning-gas valve-chamber, and bein'g ot' an exterior diameter which is not equal to the interior diameter of said chamber, so that the valve is not a tight valve as to said chamber, but one around which gas admitted to the chamber can constantly tiow.

4t) is a burning-gas valve, which fits tightly within the burning-gas valve-chamber. and which is connected with and moved by a gasvalve rod, 41, which is entered within the burning-gas valve-chaiiiber, and which projects to the front thereof', and is connected with the lower end ot' the depending yoke 36, said depending yoke sliding thereon between two stops, 42 and 43.

44 is a spiral coiled around said gas-valve rod 4l, between the front ot' its chamber and the stop 42.

Stich being a convenient construction ot' parts, by a reference to Figs. 3 and 4 it will be apparent that when thc parts are in the position represented in Fig. 3 the burninggas valve is o' the inlet-pipe and the supply ot' burning-gas at full head. Upon the throw ofthe rocker and the movement ot' the flamecarrier, as hereinbetore described, the carrierstein 26, through the instrumentality of the depending yoke 36, will occasion the backward throw ofthe gas-valve rod and the movement of the'lame and gas valves from the positions which they occupy in Fig. 3 to those which they occupy in Fig. 4. In this last-named position ot' parts the fresh supply of burnin g-gas is ofcourse eut oft", and the flame at the burner supported simply by such residuum ot' burning-gas as remains within the burning-gas valve-chamber around and contiguous to the flame-valve. Upon the return ot the flamecarrier through the medium of the yoke and spiral the flame and burniiig-gas valves are again caused ti assume the posit-ion which they occupy in Fig. 3, in which position the supply of burning-gas is augmented and the lame at the burner increased in volume, so as to cause it to leap up through the flame-ports in the carrier-chaniber, as shown in Fig. 3.

The whole contrivance last described is designed to regulate to a nicety the amount ot" burning-gas actually required for the explosion ofthe gaseous mixture, and to avoid the waste occasioned by the unnecessary consumption ot' burning-gas. One feature ot' my invention in this connec tion is of an especial value-namely, the fact that when the parts are in the position represented iii Fig. 3 the large iiame from the burner through the flame-ports heats the air, within the name-carrier, so that at the moment when the carrier is driven back against its seat in the ignition-port it is caused not only to close the flame-ports and carry a portion ofthe flame bodily into the combustion-chamber, but is also caused to supply, together with said iianic, heated air to the furtherance ot the t'orce of the explosion, as will be well understood by those familiar with the properties of explosive gases.

While I have specitied with some particularity otl detail the exact constructions which I have represented in the drawings, I desire to state that competent constructors will understand thatmany ot' these detailed constructions and contrivances can be moditied or altered, or even dispensed with, while the substitution of equivalent contrivances properly embodyingthe principles of the invention maybe made. Thus, for instance, while I have described a rock-shaft, a rock-shaft arm, cani, rocker, yoke, stems, and sundry springs as a means for couveniently operating the flame-valve, ilame-carrier, and ignition-valve, it is obvious that the gist ot' the invention lies in the provision, in the relation stated, ot' the last-named elements themselves, and that many devices may be resorted to by a skillful mechanic which willtakc the4 place ot' the various movements recited. Thus, for instance, while I have also represented and described a bell-ci'ank lever', a rod, and a sliding cani as a means for securing the transmission ofthe motion of the governor to the operation ot' the val-ve which controls the supply ot' rich gas, I desire to state that many other mechanical contrivances will eiiect this traiismissiou otl power, the gist ot' the idea residing in the supply to theinjector ot' rich gas at such time as such gas is needed. I have simply herein recited what I deem a convenient form of an engine embodying my improvements, but

I claim as my invcntionl. In a gas engine in which thc motive power is derived from the ignition ofexplosive gaseous mixtures, in combination with a-n injector communicating on the one hand with a source of supply ot' explosive gaseous mixtures and on the other hand with the combustionchamber in which the explosion is to take place, a conduit or passage-way coinmunicating on the one hand with the injector at a point within its injecting influence and on the IOO IOS

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other hand with a source ot` supply of rich gas, and means for controlling the intlux of said rich gas.

2. In a gas-engine in which the motive power is derived from theignition ot'explosive gaseous mixtures, in combination with an i11- jector communicating on the one hand with a source ofsupply of explosive gaseous mixtures and on the other hand with the combustionchamber in which the explosion is to take place, a conduit or passage-way communicating on the one hand with theinjector ata point within the influence ot' the injector-nozzle and on the other hand with a source of supply of rich gas, a valve upon said conduit to control the intiux otI rich gas, a movable cam, and mechanism connecting said cam with a gov ernor operated by the engine, whereby upon the slow movement ot' the governor the cam is moved to engage against and open the valve, and upon the rapid movement ot' the governor is moved out ot' .said engagement.

3. In a gas-engine in which the motive power is derived from the ignition of explosive gaseous mixtures, in eon'ibination with a combustion-chamber, a jet ot' burning gas exterior to said chamber and adapted to heat the air in the flame-carrier, a flame-carrier, (prcl'erably within a carricr-chamber colnmunicating with the eombustion-chamber,) and means t'or automatically movingl said flame carrier athwart the burning llame and then against an ignition port or openingr in the combustionchamber, so as to project both tlame and heat ed air into said chamber into contact with the explosive mixture therein.

4. In a gas engine in which the motive power is derived from the ignition ot'cxpiosive gaseous mixtures, in combination with a combustiou-chamber, a ]'et ot' burning gas exterior to said chamber, a tlame-carrier within a carrier-chamber communicating with the combustion-chamber, a 'llame-valve within a bilrninggas chamber, and means t'ormoving said l'lamcvalve synchronously with the flame-carrier, so as to regulate and reduce the supply ot'burninggas subsequent to the closing of the carrier.

5. In a gas engine in which the motive power is derived from the ignition ot'explosivc gaseous mixtures, as a tubular rotary induev tionfvalve, the combination ot' the hollow cylinder provided with ports, the concs, and the shaft, substantially as and t'or thc purpose speeitied.

(i. The method of producing an explosion in a gasengine herein set torth, which consists in introducing both tlame and heated air into the combustionchamber in which is contained an explosive mixture ot' gas and air.

7. In a gas engine in which the motive power is derived from the ignition ot' explosive gaseous mixtures, in con'ibination with a combustion-chamber, a-n ignition-valve controlling a port entering thereinto, a reciprocating llamelcarrier, a jet of burning gas exterior to the port of the ignition-valve and in the patb ot'said tlame'carrier, and means l'or both ad vancingsaid carrier athwart said flame and against the ignition-port, and for unseating said ignilion-vaive from said port, as and for the purposes set forth.

S. 1n agasengineot'the class herein recited, the combination ot' the following instrumentalities for the purposes set forth: a combustion-chamber, an ignitionport, a tlamelcarrier. ajet ot' burning gas, avalre controlling said jet, means for supplying an explosive mixture to the combastion-chamber, and meanst'orop'- erating the carrier, ignition-valve, and burninggas valve, substantially as described` In testimonyr whereot'I have hereuntosigned my name this 18th day ot" Itebraary, A. I). lSSZ PEER MUNZlNGElt.

ln presence ot'- J ouN JoLLnY, Jr., J. BoNsALL TAYLOR. 

